AMG Music Guitar Tuning Keys 3L+3R Guitar Machine Heads Guitar Pegs for Acoustic Guitar Automatic Analog Tuner  (Chromatic: Yes, Silver)

Quality material : With zinc alloy construction, the tuning pegs are anti-rust, anti-corrosion, high performance of stability and durability. Smooth Working: This acoustic guitar tuning peg features very smooth mechanism without any gaps & delay & slack. A great improvement to your experience of tuning your guitar. Top Durability: This acoustic guitar tuning peg is finished by barrel plating (not rack plating) which repels all water and dirt and gives inimitable look. Heavy-duty copper gear is more superior in corrosion resistance. This guitar keys Comes with screws, bushings and ferrules for easy mounting. And the tuned guitar string does not loosen easily. This guitar tuning pegs mainly for acoustic guitar, and if you have a large headstock electric guitar, this tuner machines can also work for it.